Yes is one of the biggest time wasters. I have seen even KH having a table or cart outside. No one ever comes up gets magazine. I have an experienced of a guy who got a magazine in one the carts or tables. The publishers filled out a return visit form for got the actual name of it. My friend asked me to go with him to visit this man. When we got to the door and identify who we where he said " I was just trying to be nice I didn't think you would actually visit me". I wanted to laugh and told my partner we should send this experience to the branch.
Yes some think angels are directing this work. But I think Angels rather kill people one angel killed over 185,000 Assyrians in one night. Last year baptizim was just over 165,000 in one whole year. Angels love killing people not saving.